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Additional file 1: Table S1. Number (%) of participants in each survey location in Guangdong province during 2007 and 2016. Fig. S1. Scatter plot of 10-fold cross-validation of interpolated daily temperatures, relative humidity and sunlight. Fig. S2. The non-linear relationships between daily mean, daily minimum, daily maximum temperature and FPG in total population and different T2DM subgroups. Fig. S3. The non-linear relationships between daily mean and FPG in total population and different T2DM subgroups at k = 3,4,5. Fig. S4. The density distribution of FPG in total population and different T2DM subgroups. Table S2. Statistical description of FPG and daily mean ambient temperature in total population and different T2DM subgroups. Table S3. Number (%), Mean and SE of FPG and daily mean temperature according to month. Fig. S5. The relationships between lag1 to lag6 of ambient temperature and FPG in total population and different T2DM subgroups. Table S4. The interaction analyses about the association between temperature and FPG based on effect modifier (T2DM status). Fig. S6. The relationships between ambient temperature and FPG in total population and different T2DM subgroups additionally adjusted sunshine and precipitation. Fig. S7. The relationships between ambient temperature and FPG in total population and different T2DM subgroups in survey of 2010 and 2015. Fig. S8. The relationships between ambient temperature and FPG in normal fasting glucose and newly detected-T2DM subgroups for the diagnostic standard of T2DM based on FPG and 2-h plasma glucose in 2013 survey.

As more mature technology, multi-touch appears strong interactive experience. This paper introduced multi-touch interactive technology into the linkage of 2D and 3D. Its natural and efficient features was adopted to solve the existing problem in virtual reality interaction. OTSU algorithm was applied to low the error rate of multi-touch recognition. Then defined gestures generic class and the designed linkage framework realize the linkage of 2D and 3D in multi-touch mode and promote the interaction experience.